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Note 2 - Investment Securities (Tables)

3 Months Ended

Mar. 31, 2026

Notes Tables

Marketable Securities [Table Text Block]

		March 31, 2026
						Gross				Gross
		Amortized				Unrealized				Unrealized								Fair
		Cost				Gains				Losses				ACL				Value
		(In Thousands)
Available-for-sale:
U.S. government and agency obligations		$	4,023			$	61			$	(116	)		$	-			$	3,968
U.S. treasury obligations			47,675				-				(3,749	)			-				43,926
Municipal obligations			126,641				1				(10,826	)			-				115,816
Corporate obligations			2,000				-				(30	)			-				1,970
Mortgage-backed securities			26,684				157				(1,064	)			-				25,777
Collateralized mortgage obligations			81,569				37				(4,707	)			-				76,899
Asset-backed securities			6,487				45				(1	)			-				6,531
Total		$	295,079			$	301			$	(20,493	)		$	-			$	274,887

		December 31, 2025
						Gross				Gross
		Amortized				Unrealized				Unrealized								Fair
		Cost				Gains				Losses				ACL				Value
		(In Thousands)
Available-for-sale:
U.S. government and agency obligations		$	4,179			$	62			$	(86	)		$	-			$	4,155
U.S. treasury obligations			47,665				-				(3,357	)			-				44,308
Municipal obligations			127,469				53				(9,198	)			-				118,324
Corporate obligations			2,000				-				(29	)			-				1,971
Mortgage-backed securities			27,222				180				(908	)			-				26,494
Collateralized mortgage obligations			83,907				49				(4,295	)			-				79,661
Asset-backed securities			6,720				60				(1	)			-				6,779
Total		$	299,162			$	404			$	(17,874	)		$	-			$	281,692

Investments Classified by Contractual Maturity Date [Table Text Block]

		March 31, 2026
		Amortized				Fair
		Cost				Value
		(In Thousands)
Due in one year or less		$	1,186			$	1,184
Due from one to five years			52,910				49,717
Due from five to ten years			68,858				61,270
Due after ten years			63,872				60,040
			186,826				172,211
Mortgage-backed securities			26,684				25,777
Collateralized mortgage obligations			81,569				76,899
Total		$	295,079			$	274,887

Gain (Loss) on Securities [Table Text Block]

		March 31, 2026
		Less than 12 Months								12 Months or Longer
						Gross								Gross
		Fair				Unrealized				Fair				Unrealized
		Value				Losses				Value				Losses
		(In Thousands)
U.S. government and agency obligations		$	-			$	-			$	1,811			$	(116	)
U.S. treasury obligations			-				-				43,926				(3,749	)
Municipal obligations			17,226				(541	)			97,723				(10,285	)
Corporate obligations			-				-				1,970				(30	)
Mortgage-backed securities and collateralized mortgage obligations			11,492				(97	)			70,783				(5,674	)
Asset-backed securities			1,356				-				147				(1	)
Total		$	30,074			$	(638	)		$	216,360			$	(19,855	)

		December 31, 2025
		Less than 12 months								12 months or Longer
						Gross								Gross
		Fair				Unrealized				Fair				Unrealized
		Value				Losses				Value				Losses
		(In Thousands)
U.S. government and agency obligations		$	-			$	-			$	1,848			$	(86	)
U.S. treasury obligations			-				-				44,308				(3,357	)
Municipal obligations			4,250				(101	)			107,365				(9,097	)
Corporate obligations			-				-				1,971				(29	)
Mortgage-backed securities and collateralized mortgage obligations			5,961				(42	)			73,924				(5,161	)
Asset-backed securities			-				-				164				(1	)
Total		$	10,211			$	(143	)		$	229,580			$	(17,731	)

X

- Definition

Tabular disclosure of realized and unrealized gain (loss) on investment in security.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(9)(a))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(7)(c))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2

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Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-3

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 5B
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-5B

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